Earth undergoing Sixth Mass extinction

Q.  Life on Earth is characterized by mass extinctions. Which major mass extinction is currently ongoing?
- Published on 25 Mar 16

a. Fifth
b. Sixth
c. Fourth
d. Third

ANSWER: Sixth
 
  • Mass extinctions are periods in Earth's history when abnormally large numbers of species die out simultaneously or within a limited time frame.
  • The most severe occurred at the end of the Permian period when 96% of all species perished.
  • Holocene extinction- Currently ongoing. Sixth. Extinctions have occurred at over 1000 times the background extinction rate since 1900. This mass extinction is considered a result of human activity.

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